18182094036349 has 2 divisors, whose sum is σ = 18182094036350. Its totient is φ = 18182094036348.

The previous prime is 18182094036347. The next prime is 18182094036367. The reversal of 18182094036349 is 94363049028181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14434733680249 + 3747360356100 = 3799307^2 + 1935810^2 .

It is a cyclic number.

It is not a de Polignac number, because 18182094036349 - 2¹ = 18182094036347 is a prime.

Together with 18182094036347, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 18182094036293 and 18182094036302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18182094036347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9091047018174 + 9091047018175.

It is an arithmetic number, because the mean of its divisors is an integer number (9091047018175).

Almost surely, 2^{18182094036349} is an apocalyptic number.

It is an amenable number.

18182094036349 is a deficient number, since it is larger than the sum of its proper divisors (1).

18182094036349 is an equidigital number, since it uses as much as digits as its factorization.

18182094036349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 18182094036349 in words is "eighteen trillion, one hundred eighty-two billion, ninety-four million, thirty-six thousand, three hundred forty-nine".